Ayush f3b8308c83 git_ui: Enable navigation for single-hunk diffs (#62615)
## What

Keep the hunk navigation controls available when a diff contains one
hunk, so users can return to it after scrolling away. This applies to
solo, staged, unstaged, and project diff views.

## Why

The controls were only rendered when `hunk_count > 1`, even though the
existing navigation actions already wrap and recenter a single hunk.

## How

Render the previous and next hunk controls whenever `hunk_count > 0`,
reusing the existing navigation actions.

Closes #62469

## Testing

- `cargo +stable-x86_64-pc-windows-gnu test -p git_ui --lib` — 130
passed.
- `cargo +stable-x86_64-pc-windows-gnu build -p zed -j 1` — passed.
- `rustfmt --edition 2024 --check` on the four changed files — passed.
- `git diff --check` — passed.
- Manually verified with the branch-built Zed on Windows: opened a
tracked file with exactly one diff hunk, expanded the context, scrolled
below the hunk, and used **Go to Previous Hunk**. The view returned to
the changed line.

## Showcase


https://github.com/user-attachments/assets/e7b63030-50ad-4536-8266-13987ed85f3d

## Self-Review Checklist

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://zed.dev/docs/development/ux-ui) and [icon
guidelines](https://zed.dev/docs/development/ui-icons))
- [ ] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- Enable "Go to Previous Hunk" and "Go to Next Hunk" buttons even if
there's a single diff hunk.
2026-08-17 18:16:10 +00:00
2026-08-17 13:30:49 +00:00
2026-08-12 08:35:43 +00:00
2026-07-29 13:03:22 +00:00
2026-01-22 23:57:26 +05:30
2026-07-27 05:59:53 +00:00
WIP
2023-12-14 09:25:14 -07:00
2026-08-09 22:29:52 +00:00
2026-08-09 22:29:52 +00:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2026-06-27 15:06:29 +00:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00

Zed

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


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On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).

Other platforms are not yet available:

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We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

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